Steam-boiler.



PATENTED MAR. 14, 1905.

J. G. SCHNEIDER.

STEAM BOILER.

APPLICATION FILED N018. 1904.

3 SHEETS-SHEET 1.

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J. G. SCHNEIDER. STEAM BOILER.

APPLICATION FILED NOV. 3. 1904.

3 SHEETS-SHEET 2.

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Patented March 14, 1905.

PATENT OEEIcE.

JOHN C. SCHNEIDER, OF \VINONA, MINNESOTA.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 784,894, dated March 14, 1905.

Application filed November 8,1904. Serial No. 231,920.

To all 1077,0772, it may concern.-

Be it known that 1, JOHN C. SCHNEIDER, a citizen of the United States, residing at Winona, in the county of Winona and State of Minnesota, have invented certain new and useful Improvements in Steam-Boilers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same;

This invention, whichrelates to steam-boilers, hasfor its object the production of a boilerhaving water-jacketed walls of an improved construction and by which masonry walls are dispensed with and the efliciency of the boiler largely increased.

While my improvement is adapted for employment in connection with steam-boilers generally, I have illustrated and will describe a tubular boiler embodying my invention, al-

- though it is to be understood that no limitation is intended by said showing and description.

The nature of the improvements will be readily comprehended, reference being had to the following detailed description and to the accompanying drawings, illustrating the improvements in their preferred form of embodiment, it being understood that various changes and modifications may be made therein without exceeding the scope of the concluding claims.

In the drawings, Figure 1 is a top plan View .of a steam-boiler embodying my invention.

2 is avertical longitudinal section of the same, taken on line 2 2 of Fig. 1. Fig. 3 isa front elevation of the same, partly in section. Fig. 4 is a rearelevation of the same, partly in section.

Referring to the drawings by numerals, 1 designates the boiler proper, which may be of the usual fire-tube type shown. The side walls 2 3 are each composed of innerand outer Walls secured together in separated relation by rivets 4c 4 and supported at their lower ends on suitable bases 5 5, of masonry or the like. Each of these side walls are longitudinally corrugated, as shown by the dotted lines in Fig. 1, the securing-rivets being disposed at the bases of the corrugation. By reason of I this construction the walls are increased in strength and rigidity, and increased heatingsurfaces are thus provided.

At the lower end of each wall is a mud-drum 6, provided at its end with cover-equipped openings by which access to the drum for the purposes of inspection and cleaning is permitted. Toward the upper end of each wall is a steam-drum 7, similarly equipped at its end with inspection and scraping openings. The walls extend above the steam-drum to form the support for transversebcams 8 9. from which beams'the boiler proper is suspended through the medium of bolts 10 10. Preferably each beam is composed of two channels, between which extend the bolts, and 11 is a plate resting on the upper ends of the channels and through which the bolts pass. Nuts on the bolts tightened against the plate serve to directly support the boiler proper, and, if desired, these bolts may be supple mented by other supporting means, not necessarily here shown or described. An improved feature of my invention resides in the provision of water-jacketed side walls equipped with an upper steam-drum and a lower mud-drum, which drums are accessible for thepurposes stated. Another and equally important feature of the invention consists in providing side walls of the construction shown and described which are interchangeable. The

upper ends of the side walls are brought into communication with the boiler proper through transverse pipes 16 17, which connect with a vertical pipe 18, leading from the top of the boiler near, the front end of the latter.

inner wall or sheet of each side wall is by the provision of these connections a proper circulation of water is obtained to prevent undue heating and steaming in the side walls and steam-drums, and the efiiciencyot' the boiler is thereby very largely increased.

1 claim as my invention 1. 111 a steam-boiler, the combination with the boiler proper, of water-jacketed side walls therefor communicating with the boiler proper and having at their lower end muddruxns and at or near their upper end steamdrums, substantially as and for the purpose set forth.

2. In a steam-boiler, the combination with the boiler proper, of water-jacketed side walls therefor, each composed of two corrugated sheets and comn'lunicating with the boiler proper and having at their lower end muddrums and at or near their upper end steamdrums, substantially as and for the purpose 20 JOHN C. SCHNEIDER.

\Vitnesses:

D. E. TAWNEY, MARY R. BARR. 

